Jissela Centeno and son Matthew Pineda of Arlington, Va., whose family is from Honduras, participates in a rally for immigration reform at the U.S. Capitol in Washington. Charles Dharapak, AP

A participant looks on during an immigration reform demonstration in San Francisco. Justin Sullivan, Getty Images

People attend a Rally for Citizenship in support of immigration reform on Capitol Hill in Washington. Jacquelyn Martin, AP

Tens of thousands of immigration reform supporters march in the Rally for Citizenship at the U.S. Capitol in Washington. Saul Loeb, AFP/Getty Images

A protester is detained by Capitol Police during an immigration rally in Washington. Charles Dharapak, AP

Protesters rally outside the office of Sen. Chuck Schumer, D-N.Y., on April 10 in New York. Thousands of immigrants and activists staged rallies in 18 states, calling on Congress to approve immigration legislation that would create a pathway to citizenship for 11 million illegal immigrants. Seth Wenig, AP

Demonstrators calling for an overhaul of the nation's immigration laws march near the Georgia Capitol in Atlanta. John Bazemore, AP

A protester waves a sign during a rally at the Georgia Capitol. John Bazemore, AP

Franklin Mercado and his mother, Zoila Fajardo, attend the "Rally for Citizenship" on Capitol Hill in Washington. Jacquelyn Martin, AP

Adita Chicas, left, and her son, Jessy, cheer as they march on Capitol Hill. Jacquelyn Martin, AP

Sigifredo Pizana Hernandez of Grand Rapids, Mich., attends the "Rally for Citizenship" in Washington. Hernandez has applied for deferred action and hopes to attend college this year. Jacquelyn Martin, AP

People rally on Capitol Hill. Some waved flags from their native countries, while some carried signs calling for citizenship for 11 million illegal immigrants. Charles Dharapak, AP

Jose Martinez from Plainfield, N.J., plays the ukulele during a demonstration at the U.S. Capitol. Martinez is originally from Ecuador. Charles Dharapak, AP

Rigoberto Ramos, originally from Guatemala, rallies for immigration changes in front of the U.S. Capitol. Charles Dharapak, AP

Students from Staten Island, N.Y., march past the Dirksen Senate Office Building on Capitol Hill. Jacquelyn Martin, AP